We have built an Unleashed network inside a storing facility recently and everything seems fine, except that sometimes the network slows down. Trying to do some troubleshooting, we found out that when connected to an AP, pinging that same AP gives irregular and quite erratic results. Most of the times, the replies are under 30 ms but there are various irregular spikes that go up to 400 and even 600 ms. This seems completely random, as we didn't move the client, the AP or anything between the two. The wired network seems fine as well.
Do anyone have suggestions on what to troubleshoot further in order to understand what's the cause of this behavior?